Boiler-scraping attachment



no Model.) 2 Sheets-Sheet 1 J. M. LAKENAN.

BOILER SGRAPING ATTACHMENT. No. 268,504. Pafcented Dec. 5, 1882.

A a g glmlll (No Model.) 2 Sheets-Sheet 2.

J. M. LAKENAN.

BOILER SGRAPINQNATTAGHMENT.

No. 268,504. Patented Dec. 5, 1882.

m M j 3mm UNITED STATES PATENT @EEICE.

JAMES M. LAKENAN, OF GRASS VALLEY, CALIFORNIA.

BOIL'ER -SCR APING ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 268,504, dated December 5, 1882.

Application filed October 2,1882. (No modeL) all whom it may concern: I

Be it known that I, J. IVLLAKENAN, of Grass Valley, county ofNevada, State of California,

' scraping the interior of boilers, and, in connec-' 10 have invented an Improved Boiler-Scraping Attachment; and I hereby declare the following to bea full. clear, and exact description thereof.

My invention relates to an apparatus for tion therewith, of a joint through which the operating-rod of the scraper passes, and which allows it to move from side to side within the boiler, so that the. work may he done at any time withoutrunning the steam down or in any way'intert'ering with the machinery.

Referring to the accompanying drawings for a more completecxplanation of my invention, Figure l is a view of my apparatus. Fig. 2 is a longitudinal section. Fig. 3 is a modification.

A is a rod, having fixed to one end a brush or scraper for the purpose of scraping or cleaning out the accumulations within a boiler, so

that they may be blown off or otherwise removed. This rod passes through a smiling- 'box,,B, having packing 0, so that it maybe moved forward and back without leakage around the rod.

In order to allow the scraper to have a movement from side to side, so as to reach all necessary parts, I employ a removable joint which is formed as follows:

O is a pipe, which is screwed tightly into the lower part of the boiler, as at the front handhole plate. The outer end of this pipe has an enlarged globularhea-d, D, which is ground to fit perfectly in a corresponding depression or socket, E, in the end ot' the stuffing-boxB, as shown. The two parts of this joint may be held together in various ways.

In Fig. 1 I have shown lugs F projecting from the sides of the part B, and two stout bolts, G, pass through holes in these lugs, so as to stand upon each side and parallel with the red A. The ends of these bolts have holes made in them to receive the trunnions H, which project radially from a ring, I. This ring encircles the pipe 0 and fits closely against the shoulderformed by the enlarged globular head D. Nuts J upon the ends of the bolts G are turned up against thelugs F, and thus serve I 'to draw the head D closely into the'socket and make a tight joint, while the stutfing-box and rod may be turned from side to side, the trunnions, which are radial from its axis, serving asjournals about which it turns.

In Fig.2 I have shown aflange, K, extended outward from the stuffing-box and forming an enlarged extension, which surrounds the head D at some distance away from it. Acylindrical flange, L, is fitted to screw into this part K, and its end is turned so as to fit the globe, as shown at M. ,As it is smaller at that point than the greatest diameter ot'the globe, it will, when screwed into the part K, draw the globe against the end of the part B, so as to keep a tightjoint, while at the same time allowing the necessary universal movement.

The bore of the part 0 D is very much larger than the rod A and the bore of the part B, and this allows the latter, with the rod, to he moved about from side to side, so that the scraper upon the inner end of the rod may be moved about within the boiler and scrape back the sediment to the blow-off pipe. This enables me to scrape out and blow ofi' any sediment within the boiler without stopping work or allowing the steam to run down or the water to be discharged.

Having thus described my invention, what I desire to secure by Letters Patent is- 1. In a boiler-scraper, the rod A, passing through the stuffing-box B into the boiler, in

combination with the pipeO and the globular head D, fitting a' corresponding socket in the end of B, and retained so that the rod and stuffing-box may have a. movement about the head without leakage, substantially as herein described.

2. The pipe 0, fitting into the boiler, and the stuffing-box B, with. the interposed universal joint D, in combination with the rod A and scraper ot' a boiler'cleaner, substantially as herein described.

In witness whereof I hereunto set my hand.

JAMES M. LAKENAN.

Witnesses:

ISIDOR HAAS, THOMAS OLAKE. 

